CVE-2026-41662: medium-severity vulnerability in admidio
Admidio: Missing Minimum Administrator Check in Role Membership Removal
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.2epss 0.3%
Admidio is an open-source user management solution. Prior to version 5.0.9, Role::stopMembership() does not verify whether removing a user from the administrator role leaves zero administrators. The deprecated Membership::stopMembership() contains this safety check, but the current code path bypasses it. Any administrator can remove the last remaining other administrator, locking the entire system out of administrative access. The exploit does not require concurrent requests; sequential removals produce the same result. This issue has been patched in version 5.0.9.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:H
Affected products
Admidio · admidioRelated CVEs — admidio
In the same product, most dangerous first.
CVE-2021-43810HIGHCross-site Scripting (XSS) when redirect an urlEPSS 5.1%CVE-2021-32630CRITICALVariousEPSS 1.6%CVE-2020-11004HIGHSQL Injection in AdmidioEPSS 1.5%CVE-2024-38529CRITICALAdmidio Vulnerable to RCE via Arbitrary File Upload in Message AttachmentEPSS 1.2%CVE-2026-32756HIGHAdmidio: Unrestricted File Upload via CSRF Token Validation Bypass in Documents & Files ModuleEPSS 1.0%CVE-2024-37906CRITICALAdmidio has Blind SQL Injection in ecard_send.phpEPSS 0.9%